SYSTEMD−NETWORKD−WAIT−ONLINE.SERVICE - Online Linux Manual PageSection : 8
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Source : systemd 253
Note : systemd-networkd-wait-online.service
NAMEsystemd-networkd-wait-online.service, systemd-networkd-wait-online@.service, systemd-networkd-wait-online − Wait for network to come online
SYNOPSISsystemd−networkd−wait−online.service systemd−networkd−wait−online@.service /usr/lib/systemd/systemd−networkd−wait−online
DESCRIPTIONsystemd−networkd−wait−online is a oneshot system service (see systemd.service(5)), that waits for the network to be configured. By default, it will wait for all links it is aware of and which are managed by systemd-networkd.service(8) to be fully configured or failed, and for at least one link to be online. Here, online means that the link's operational state is equal or higher than "degraded". The threshold can be configured by −−operational−state= option. The service systemd−networkd−wait−online.service invokes systemd−networkd−wait−online without any options. Thus, it waits for all managed interfaces to be configured or failed, and for at least one to be online. The service systemd−networkd−wait−online@.service takes an interface name, and invokes systemd−networkd−wait−online with −i and the specified interface name. Thus, wait for the specified interface to be configured and online. For example, systemd−networkd−wait−online@eth0.service waits for eth0 to be configured by systemd−networkd and online.
OPTIONSThe following options are understood: −i INTERFACE[:MIN_OPERSTATE[:MAX_OPERSTATE]], −−interface=INTERFACE[:MIN_OPERSTATE[:MAX_OPERSTATE]] Network interface to wait for before deciding if the system is online. This is useful when a system has several interfaces which will be configured, but a particular one is necessary to access some network resources. When used, all other interfaces are ignored. This option may be used more than once to wait for multiple network interfaces. When this option is specified multiple times, then systemd−networkd−wait−online waits for all specified interfaces to be online. Optionally, required minimum and maximum operational states can be specified after a colon ":". Please see networkctl(1) for possible operational states. If the operational state is not specified here, then the value from RequiredForOnline= in the corresponding .network file is used if present, and "degraded" otherwise. −−ignore=INTERFACE Network interfaces to be ignored when deciding if the system is online. By default, only the loopback interface is ignored. This option may be used more than once to ignore multiple network interfaces. −o MIN_OPERSTATE[:MAX_OPERSTATE], −−operational−state=MIN_OPERSTATE[:MAX_OPERSTATE] Takes a minimum operational state and an optional maximum operational state. Please see networkctl(1) for possible operational states. If set, the specified value overrides RequiredForOnline= settings in .network files. But this does not override operational states specified in −−interface= option. −4, −−ipv4 Waiting for an IPv4 address of each network interface to be configured. If this option is specified with −−any, then systemd−networkd−wait−online exits with success when at least one interface becomes online and has an IPv4 address. If the required minimum operational state is below "routable", then each link (or at least one link with −−any) must have an IPv4 link−local or routable address. If the required minimum operational state is "routable", then each link must have an IPv4 routable address. If neither −−ipv4 nor −−ipv6 is specified, then the value from RequiredFamilyForOnline= in the corresponding .network file is used if present. −6, −−ipv6 Waiting for an IPv6 address of each network interface to be configured. If this option is specified with −−any, then systemd−networkd−wait−online exits with success when at least one interface becomes online and has an IPv6 address. If the required minimum operational state is below "routable", then each link (or at least one link with −−any) must have an IPv6 link−local or routable address. If the required minimum operational state is "routable", then each link must have an IPv6 routable address. If neither −−ipv4 nor −−ipv6 is specified, then the value from RequiredFamilyForOnline= in the corresponding .network file is used if present. −−any Even if several interfaces are in configuring state, systemd−networkd−wait−online exits with success when at least one interface becomes online. When this option is specified with −−interface=, then systemd−networkd−wait−online waits for one of the specified interfaces to be online. This option is useful when some interfaces may not have carrier on boot. −−timeout=SECS Fail the service if the network is not online by the time the timeout elapses. A timeout of 0 disables the timeout. Defaults to 120 seconds. −q, −−quiet Suppress log messages. −h, −−help Print a short help text and exit. −−version Print a short version string and exit.
SEE ALSOsystemd(1), systemd.service(5), systemd-networkd.service(8), networkctl(1) 0
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